diff --git a/aaa-cli-jar/pom.xml b/aaa-cli-jar/pom.xml
index d9c4db423..f2adb888a 100644
--- a/aaa-cli-jar/pom.xml
+++ b/aaa-cli-jar/pom.xml
@@ -20,10 +20,6 @@ and is available at http://www.eclipse.org/legal/epl-v10.html INTERNAL
   <name>ODL :: aaa :: ${project.artifactId}</name>
   <packaging>jar</packaging>
 
-  <properties>
-    <odlparent.modernizer.enforce>false</odlparent.modernizer.enforce>
-  </properties>
-
   <dependencies>
     <dependency>
       <groupId>com.google.guava</groupId>
diff --git a/aaa-cli-jar/src/main/java/org/opendaylight/aaa/cli/jar/AbstractMain.java b/aaa-cli-jar/src/main/java/org/opendaylight/aaa/cli/jar/AbstractMain.java
index 0b0957f0b..f316a4e84 100644
--- a/aaa-cli-jar/src/main/java/org/opendaylight/aaa/cli/jar/AbstractMain.java
+++ b/aaa-cli-jar/src/main/java/org/opendaylight/aaa/cli/jar/AbstractMain.java
@@ -9,6 +9,7 @@
 
 import java.io.File;
 import java.io.IOException;
+import java.nio.file.Path;
 import java.util.List;
 import joptsimple.OptionParser;
 import joptsimple.OptionSet;
@@ -130,7 +131,7 @@ private static OptionParser getOptionParser() {
 
         parser.acceptsAll(List.of(OPTION_HELP, "?"), "Show help").forHelp();
         parser.accepts(OPTION_DB_DIR, "databaseDirectory").withRequiredArg().ofType(File.class)
-            .defaultsTo(new File(".")).describedAs("path");
+            .defaultsTo(Path.of(".").toFile()).describedAs("path");
         parser.acceptsAll(List.of(OPTION_LIST_USERS, "listUsers"), "List all existing users");
         parser.acceptsAll(List.of(OPTION_NEW_USER, "newUser"), "New user to create").withRequiredArg();
         parser.acceptsAll(List.of(OPTION_CHANGE_USER, "changeUser"), "Existing user name to change password")
diff --git a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/AbstractMainTest.java b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/AbstractMainTest.java
index 1f1923a26..0fbc38093 100644
--- a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/AbstractMainTest.java
+++ b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/AbstractMainTest.java
@@ -16,6 +16,7 @@
 import static org.mockito.Mockito.verify;
 
 import java.io.File;
+import java.nio.file.Path;
 import java.util.List;
 import org.junit.Test;
 import org.opendaylight.yangtools.testutils.mockito.MoreAnswers;
@@ -26,6 +27,8 @@
  * @author Michael Vorburger.ch
  */
 public class AbstractMainTest {
+    private static final File DOT_FILE = Path.of(".").toFile();
+
     private static AbstractMain mockedMain() {
         return mock(AbstractMain.class, MoreAnswers.realOrException());
     }
@@ -94,7 +97,7 @@ public void ifPasswordsThenEitherCreateOrChangeUser() throws Exception {
     public void changeUserAndPassword() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0, main.parseArguments(new String[] { "-X", "-cu", "user", "-p", "newpass" }));
-        verify(main).setDbDirectory(new File("."));
+        verify(main).setDbDirectory(DOT_FILE);
         verify(main).resetPasswords(List.of("user"), List.of("newpass"));
     }
 
@@ -102,7 +105,7 @@ public void changeUserAndPassword() throws Exception {
     public void addNewUser() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0, main.parseArguments(new String[] { "-X", "-nu", "user", "-p", "newpass" }));
-        verify(main).setDbDirectory(new File("."));
+        verify(main).setDbDirectory(DOT_FILE);
         verify(main).addNewUsers(List.of("user"), List.of("newpass"), false);
     }
 
@@ -110,7 +113,7 @@ public void addNewUser() throws Exception {
     public void addNewAdminUser() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0, main.parseArguments(new String[] { "-X", "-nu", "user", "-p", "newpass", "-a" }));
-        verify(main).setDbDirectory(new File("."));
+        verify(main).setDbDirectory(DOT_FILE);
         verify(main).addNewUsers(List.of("user"), List.of("newpass"), true);
     }
 
@@ -119,7 +122,7 @@ public void changeUserAndPasswordInNonDefaultDatabase() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0,
             main.parseArguments(new String[] { "-X", "--dbd", "altDbDir", "-cu", "user", "-p", "newpass" }));
-        verify(main).setDbDirectory(new File("altDbDir"));
+        verify(main).setDbDirectory(Path.of("altDbDir").toFile());
         verify(main).resetPasswords(List.of("user"), List.of("newpass"));
     }
 
@@ -147,7 +150,7 @@ public void cantAddAndChangeUsersTogether() throws Exception {
     public void deleteSingleUser() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0, main.parseArguments(new String[] { "-X", "-du", "duser" }));
-        verify(main).setDbDirectory(new File("."));
+        verify(main).setDbDirectory(DOT_FILE);
         verify(main).deleteUsers(List.of("duser"));
     }
 
@@ -155,7 +158,7 @@ public void deleteSingleUser() throws Exception {
     public void verify1User1Password() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0, main.parseArguments(new String[] { "-X", "-vu", "user", "-p", "pass" }));
-        verify(main).setDbDirectory(new File("."));
+        verify(main).setDbDirectory(DOT_FILE);
         verify(main).verifyUsers(List.of("user"), List.of("pass"));
     }
 
@@ -164,7 +167,7 @@ public void verify2User2Password() throws Exception {
         AbstractMain main = spy(AbstractMain.class);
         assertEquals(0, main.parseArguments(new String[] {
             "-X", "-vu", "user1", "-p", "pass1", "-vu", "user2", "-p", "pass2" }));
-        verify(main).setDbDirectory(new File("."));
+        verify(main).setDbDirectory(DOT_FILE);
         verify(main).verifyUsers(List.of("user1", "user2"), List.of("pass1", "pass2"));
     }
 
diff --git a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/FilesUtils.java b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/FilesUtils.java
index 4e1c36d0a..d64695d97 100644
--- a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/FilesUtils.java
+++ b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/FilesUtils.java
@@ -11,7 +11,6 @@
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.util.Comparator;
 
 /**
@@ -24,10 +23,10 @@ private FilesUtils() {
         // Hidden on purpose
     }
 
-    public static void delete(final String directory) throws IOException {
-        final Path path = Paths.get(directory);
-        if (Files.exists(path)) {
-            Files.walk(path).sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete);
+    public static void delete(final Path directory) throws IOException {
+        if (Files.exists(directory)) {
+            Files.walk(directory).sorted(Comparator.reverseOrder()).map(Path::toFile).forEach(File::delete);
         }
     }
+
 }
diff --git a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIT.java b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIT.java
index 1d86ca9ed..2c5ae9257 100644
--- a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIT.java
+++ b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIT.java
@@ -10,10 +10,9 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 
-import java.io.File;
 import java.io.IOException;
+import java.nio.file.Path;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import org.junit.Test;
 
@@ -27,8 +26,7 @@
  * @author Michael Vorburger
  */
 public class MainIT {
-
-    private static final String DIR = "target/" + MainIT.class.getSimpleName();
+    private static final Path DIR = Path.of("target", MainIT.class.getSimpleName());
 
     @Test
     public void integrationTestBuildJAR() throws Exception {
@@ -43,13 +41,13 @@ public void integrationTestBuildJAR() throws Exception {
     }
 
     private static void runFatJAR(final String... arguments) throws IOException, InterruptedException {
-        List<String> fullArguments = new ArrayList<>(Arrays.asList(
-            findJava().getAbsolutePath(),
+        final var fullArguments = new ArrayList<>(List.of(
+            Path.of(System.getProperty("java.home")).resolve("bin").resolve("java").toAbsolutePath().toString(),
             "-jar",
-            findExecutableFatJAR().getAbsolutePath(),
+            findExecutableFatJAR().toAbsolutePath().toString(),
             "--dbd",
-            DIR));
-        fullArguments.addAll(Arrays.asList(arguments));
+            DIR.toString()));
+        fullArguments.addAll(List.of(arguments));
 
         // If Output piping to LOG instead of inheritIO() etc. is needed, then
         // consider using https://github.com/vorburger/MariaDB4j/tree/master/mariaDB4j-core/src/main/java/ch/vorburger/exec
@@ -61,18 +59,14 @@ private static void runFatJAR(final String... arguments) throws IOException, Int
         assertEquals(0, process.exitValue());
     }
 
-    private static File findExecutableFatJAR() {
-        File targetDirectory = new File(".", "target");
-        File[] jarFiles = targetDirectory.listFiles((dir, name) -> name.startsWith("aaa-cli-jar-")
+    private static Path findExecutableFatJAR() {
+        final var targetDirectory = Path.of(".", "target").toFile();
+        final var jarFiles = targetDirectory.listFiles((dir, name) -> name.startsWith("aaa-cli-jar-")
             && name.endsWith(".jar")
             && !name.contains("-javadoc")
             && !name.contains("-sources"));
         assertNotNull("*jar-with-dependencies.jar files in " + targetDirectory, jarFiles);
         assertEquals("*jar-with-dependencies.jar files in " + targetDirectory, 1, jarFiles.length);
-        return jarFiles[0];
-    }
-
-    private static File findJava() {
-        return new File(new File(new File(System.getProperty("java.home")), "bin"), "java");
+        return jarFiles[0].toPath();
     }
 }
diff --git a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIntegrationTest.java b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIntegrationTest.java
index a9461bd8e..3cf1ade97 100644
--- a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIntegrationTest.java
+++ b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/MainIntegrationTest.java
@@ -9,6 +9,7 @@
 
 import static org.junit.Assert.assertEquals;
 
+import java.nio.file.Path;
 import org.junit.Test;
 
 /**
@@ -19,32 +20,33 @@
  * @author Michael Vorburger.ch
  */
 public class MainIntegrationTest {
-    private static final String DIR = "target/" + MainIntegrationTest.class.getSimpleName();
+    private static final Path DIR = Path.of("target", MainIntegrationTest.class.getSimpleName());
+    private static final String DIR_STR = DIR.toString();
 
     @Test
     public void testCLI() throws Exception {
         FilesUtils.delete(DIR);
         assertEquals(0, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-a", "-nu", "newuser", "-p", "firstpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-a", "-nu", "newuser", "-p", "firstpass" }));
         assertEquals(0, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-vu", "newuser", "-p", "firstpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-vu", "newuser", "-p", "firstpass" }));
         assertEquals(-7, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-vu", "newuser", "-p", "wrongpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-vu", "newuser", "-p", "wrongpass" }));
         assertEquals(0, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-cu", "newuser", "-p", "newpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-cu", "newuser", "-p", "newpass" }));
         assertEquals(-7, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-vu", "newuser", "-p", "firstpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-vu", "newuser", "-p", "firstpass" }));
         assertEquals(0, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-vu", "newuser", "-p", "newpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-vu", "newuser", "-p", "newpass" }));
         assertEquals(0, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-du", "newuser" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-du", "newuser" }));
         assertEquals(-7, new Main()
-            .parseArguments(new String[] { "-X", "--dbd", DIR, "-vu", "newuser", "-p", "newpass" }));
+            .parseArguments(new String[] { "-X", "--dbd", DIR_STR, "-vu", "newuser", "-p", "newpass" }));
     }
 
     @Test
     public void testMismatchUsersPasswords() throws Exception {
-        assertEquals(-3, new Main().parseArguments(new String[] { "-X", "--dbd", DIR,
+        assertEquals(-3, new Main().parseArguments(new String[] { "-X", "--dbd", DIR_STR,
             "-vu", "newuser1", "-p", "newpass1",
             "-vu", "newuser2" /* No 2nd -p */ }));
     }
diff --git a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/StandaloneCommandLineInterfaceTest.java b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/StandaloneCommandLineInterfaceTest.java
index d6ae43307..7f071a337 100644
--- a/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/StandaloneCommandLineInterfaceTest.java
+++ b/aaa-cli-jar/src/test/java/org/opendaylight/aaa/cli/jar/StandaloneCommandLineInterfaceTest.java
@@ -13,7 +13,7 @@
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
-import java.io.File;
+import java.nio.file.Path;
 import java.util.List;
 import org.junit.Before;
 import org.junit.Test;
@@ -24,14 +24,14 @@
  * @author Michael Vorburger.ch
  */
 public class StandaloneCommandLineInterfaceTest {
-    private static final String DIR = "target/" + StandaloneCommandLineInterfaceTest.class.getSimpleName();
+    private static final Path DIR = Path.of("target", StandaloneCommandLineInterfaceTest.class.getSimpleName());
 
-    StandaloneCommandLineInterface cli;
+    private StandaloneCommandLineInterface cli;
 
     @Before
     public void before() throws Exception {
         FilesUtils.delete(DIR);
-        cli = new StandaloneCommandLineInterface(new File(DIR));
+        cli = new StandaloneCommandLineInterface(DIR.toFile());
     }
 
     @Test